Since the beginning of the all-out war, mines have also been drifting along the trade route, which also poses a risk to maritime transport.As a major grain producer, Ukraine exports about 6 million tons of grain per month through ports along the Black Sea. Following an initial blockade at the start of Russia's full-scale invasion, Russia unilaterally terminated the Black Sea grain deal last year forcing Kyiv to set up a new export route in the Black Sea. Initially envisioned as a humanitarian corridor to allow the departure of ships stranded there since the start of the full-scale war, it has since grown into a full-blown trade route.Last month, Russian forces struck a foreign civilian ships in Odesa, killing a 60 year-old Ukrainian port employee and injuring five foreign nationals.